女性，39岁，近3年来反复上腹部不适，疼痛，频繁嗳气。钡透和胃镜检查无阳性发现，最可能的是（）

A.慢性胃体胃炎

B.慢性胃窦炎

C.功能性消化不良

D.早期胃癌

E.十二指肠球炎

根据句意及首字母提示,填写单词.

1. Don't f             the bottle (瓶子) with hot water. It's very dangerous.

2. Can you i           what life on the moon is like?

3. This is a club s          organized for football fans.

4. Please s        the door when you leave the office.

5. The old man seems a little d          . Please speak louder, or he can't hear you clearly.